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Add upgrade note about release date constraint #122015

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Merged
merged 3 commits into from
Feb 7, 2025
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Add upgrade note about release date constraint #122015

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77c91cd
Add upgrade note about release date constraint
DaveCTurner Feb 7, 2025
40a4304
Merge branch '8.x' into 2025/02/07/chronological-release-order
DaveCTurner Feb 7, 2025
69aa192
Fix up to match stack docs
DaveCTurner Feb 7, 2025
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15 changes: 15 additions & 0 deletions docs/reference/upgrade.asciidoc
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Expand Up @@ -25,6 +25,21 @@ proceeding with the upgrade. For instructions, refer to
{stack-ref}/upgrading-elastic-stack.html#prepare-to-upgrade[Prepare to upgrade
from 7.x].

[discrete]
[[upgrade-newer-releases]]
=== Out-of-order releases

Elastic maintains several minor versions of {es} at once. This means releases
do not always happen in order of their version numbers. You can only upgrade to
{version} if the version you are currently running meets both of these
conditions:

* Has an older version number than {version}.
* Has an earlier release date than {version}.

If you are currently running a version with an older version number but a later
release date than {version}, wait for a newer release before upgrading.

[discrete]
[[upgrade-index-compatibility]]
=== Index compatibility
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